Sorry for the late reply on this one guys. Don't know if there will be any modern animals per say as almost all will have evolved in one way or another between then and now but yeah plenty of early relatives of animals still around today and some that are not!

Don't think we have a formal list announced just yet ( I will bring it up in the team chat) but, we do have a lot of different animals in game already and there is a pretty decent variety in terms of size, movement, attack etc. Something we will continue to add to as we progress though Early Access and beyond.